I have a new radio for a 2008 ford Escape Limited?

I have a new radio for a 2008 ford Escape Limited. I'm installing a new radio. The radio side harness I have has the constant power (yellow), Ground (Black), Accessory power (red) and illumination (orange) From the vehicle harness, I only see the corresponding constant power and the ground.

Where do I get the accessory and illumination from?

Auto manufacturers wire colors never match radio manufacturers. Go to crutchfield.com and put in your vehicle. Their tool will tell you what radios are compatible and what wiring harness adapter kit you will need. If you buy a harness from them it will come with detailed instructions on how to wire it to your radio. Then it will simply plug into the vehicles existing harness.

Phil is right, the best thing is to get an adapter harness that will allow you to install any aftermarket system. But if you are really wanting to hard wire it yourself, here's the color codes